[#189] sdk/netmap: Refactor PlacementPolicy type

Replace alias to v2 type PlacementPolicy with v2-compatible implementation.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/netmap/policy_test.go

@@ -0,0 +1,69 @@
+package netmap
+
+import (
+	"testing"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPlacementPolicyFromV2(t *testing.T) {
+	pV2 := new(netmap.PlacementPolicy)
+
+	pV2.SetReplicas([]*netmap.Replica{
+		testReplica().ToV2(),
+		testReplica().ToV2(),
+	})
+
+	pV2.SetContainerBackupFactor(3)
+
+	pV2.SetSelectors([]*netmap.Selector{
+		testSelector().ToV2(),
+		testSelector().ToV2(),
+	})
+
+	pV2.SetFilters([]*netmap.Filter{
+		testFilter().ToV2(),
+		testFilter().ToV2(),
+	})
+
+	p := NewPlacementPolicyFromV2(pV2)
+
+	require.Equal(t, pV2, p.ToV2())
+}
+
+func TestPlacementPolicy_Replicas(t *testing.T) {
+	p := NewPlacementPolicy()
+	rs := []*Replica{testReplica(), testReplica()}
+
+	p.SetReplicas(rs...)
+
+	require.Equal(t, rs, p.Replicas())
+}
+
+func TestPlacementPolicy_ContainerBackupFactor(t *testing.T) {
+	p := NewPlacementPolicy()
+	f := uint32(3)
+
+	p.SetContainerBackupFactor(f)
+
+	require.Equal(t, f, p.ContainerBackupFactor())
+}
+
+func TestPlacementPolicy_Selectors(t *testing.T) {
+	p := NewPlacementPolicy()
+	ss := []*Selector{testSelector(), testSelector()}
+
+	p.SetSelectors(ss...)
+
+	require.Equal(t, ss, p.Selectors())
+}
+
+func TestPlacementPolicy_Filters(t *testing.T) {
+	p := NewPlacementPolicy()
+	fs := []*Filter{testFilter(), testFilter()}
+
+	p.SetFilters(fs...)
+
+	require.Equal(t, fs, p.Filters())
+}